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Free_Kalibri [48]
3 years ago
12

There are 20 people in a room, If they all shake each other's hands once and only once, HOW MANY handshakes are there altogether

?

Mathematics
2 answers:
vazorg [7]3 years ago
7 0
I thinkkkkk40 I think
Ann [662]3 years ago
5 0

Answer:380 Shakes

Step-by-step explanation:

first you need to figure out how many people are shaking the persons hand sou you do 20 x 16 which equals 380

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